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New unpublished researches into this problem have shown that it closely resembles neurine, a body which I hope will speedily lead us to the complete synthesis of atropine. The fusing point of atropine is not 194 deg. F., as stated by Planta, but 237 deg. F. Crystallized from not too dilute alcohol it forms crystals which are aggregations of prisms.
Ptomaines are, for the most part, alkaloids generated during the process of putrefaction, and they closely resemble many of the vegetable alkaloids veratrine, morphine, and codeine, for example not only in chemical characters, but in physiological properties. They are probably allied to neurine, an alkaloid obtained from the brain and also from the bile.
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